WWE "Monday Night Raw"EEK!! A MOUSE ... Toe-to-Toe with John Cena

8/16/2011 7:00 AM PDT

WWE Monday Night Raw -- Eeek! A Mouse Goes Toe-to-Toe with John Cena

There's a new challenger for the WWE belt ... a ferocious .... teensy-weensy mouse!

It all went down last night at the Valley View Casino Center in San Diego on Monday Night RAW --John Cena stormed the ring to attack WWE champion Alberto Del Rio ... and the two were photo-bombed by a tiny mouse.